import random
from django import http
from . import serializers
from rest_framework import status
from rest_framework.generics import GenericAPIView
from rest_framework.response import Response
from rest_framework.views import APIView
from libs.captcha.captcha import captcha
from django_redis import get_redis_connection

class ImgCode(APIView):

    def get(self,request,img_code_id):
        #获取图片验证码
        text,img = captcha.generate_captcha()
        #存入数据库redis
        redis_conn = get_redis_connection("code")
        redis_conn.setex("image_code_%s" % img_code_id, 300, text)

        #返回
        response = http.HttpResponse(img)
        response["Content-type"] = "img/png"
        return response


class SmsCode(GenericAPIView):
    serializer_class = serializers.SmsCodeSerializer
    def get(self,request,mobile):
        #1,获取参数
        dict_data = request.query_params

        #2,创建序列化器,校验
        serializer =  self.get_serializer(data=dict_data)
        serializer.is_valid(raise_exception=True)

        #判断用户频繁发送
        redis_conn = get_redis_connection("code")
        send_flag = redis_conn.get("send_flag_%s"%mobile)
        if send_flag:
            return Response({"errmsg":"频繁发送"},status=400)

        #3,发送短信
        sms_code = "%06d"%random.randint(0,99999)
        from celery_tasks.sms.tasks import send_sms_code
        # try:
        #     send_sms_code.delay(mobile,sms_code)
        # except:
        #     pass
        print("sms_code = %s"%sms_code)

        #4,短信入库

        redis_conn.setex("sms_code_%s"%mobile,300,sms_code)
        redis_conn.setex("send_flag_%s"%mobile,60,True)
        #5,返回响应
        return Response(status=status.HTTP_200_OK)

